View the set of Firefox extensions I use and recommend:

• ASCIItoUnicode 0.3.4 - Converts selected ASCII to Unicode with right-click
• Clippings 2.0.1 - Save frequently-entered text for pasting later.
• DOM Inspector 1.8.0.6 - Inspect the DOM of HTML, XUL, and XML pages, including the browser chrome.
• Download Manager Tweak 0.7.1 - A modification of the Firefox download manager that changes its appearance and allows it to be opened in a separate window, a new tab, or the sidebar.
• Easy Job Application 1.0 - Easily send job applications using Gmail in websites like Craigslist.
• Extended Statusbar 1.2.4 - A Statusbar with Speed, Percentage, Time and loaded size (like Opera's one)
• Extension Developer 0.3.0.20060726 - A suite of tools for extension developers
• FireBug 0.4 - Web Debugging Evolved
• FireFTP 0.94.2 - FTP Client for Mozilla Firefox.
• Formfiller 0.3 - Fill in repetetive forms easier.
• Gerador de CPF e CNPJ 1.0.4.2 - Brazilian CPF and CNPJ valid numbers generator.
• Gmail Manager 0.5 - Manage Gmail accounts and notifies about new messages.
• Google Bookmarks Button 0.2 - Adds a new button in the Firefox toolbar to manage the Google Bookmarks
• Google Notebook 1.0.0.5 - Allows notetaking while browsing
• GooglePreview 1.3.2 - Inserts web site previews in google and yahoo search results.
• gTranslate 0.2.7 - Translates the selected text via Google Translate.
• IE Tab 1.0.9.5 - Allows you to use Internet Explorer browser engine inside Mozilla/Firefox.
• Inline Google Definitions 0.4 - Shows Google Definitions for the selected word (in the same tab!)
• MR Tech Local Install 5.2 - Powerful tools for extension management.
• PDF Download 0.7.4 - Allow you to choose what to do with PDF files: save, view with external reader or as HTML!
• Pearl Crescent Page Saver Basic 1.1 - Saves an image from a webpage to a file.
• Pickup Photo Uploader 0.5 - Upload pictures to photo sharing websites, including Flickr.
• SearchPluginHacks 0.1.3 - Allows uninstalling search plugins - just right click on a search plugin and choose 'Delete'
• Tab Mix Plus 0.3.0.5 - Enhances tab browsing.
• Talkback 1.5.0.6 - Submit a crash report to Mozilla.org.
• Update Notifier 0.1.4 - Notifies about new extensions and themes updates.
• Viamatic foXpose 0.3 - Click on the icon in the status bar to view all the browser windows with a single click.
• WebmailCompose 0.6.6 - Makes mailto: links load your webmail's compose page and adds a Compose link to the context menu.